Polishing device



Jap. 3, 1933. J. DRUKER 1,892,723

POLISHING DEVICE Filed Nov. 19, 1931 Patented Jan. 3, 1933 JOSHUA ERUKER, OF DORGHESTER, MASSACHUSETTS POLISHlNG DEVICE Application led. November 19, '1931. Serial No. 576,169.

The ypresent invention relates generally to a polishing device and more particularly to a manual polishing device for the application Y Y of polishing material or the like to furniture, 5 automobile bodies or the like.

The obj ect of theinvention is to provide a device of this type which is readily manipulable and which may be constructed from the minimum number ofparts, thereby providr'10 ingl a simple, rugged and inexpensive device which permits of the uniform distribution of the polishing material andfor the uniform application of the pressure employed in the polishing operation. Another object is to 15 provide a structure in whichthe polishing material may be readily replaced when desired. Y v

Broadly the present improved manual polisher comprises a metal plate, such as brass,

"` i2.0 aluminum or the like, having removably attached thereto and disposed on one face thereof a polishing material such as felt or sponge rubber or any other suitable material. The plate is provided with readily manipulable 355 devices for attaching the material or sponge rubber to the plate, the plate being also provided with a handle for the ready manipulation of the device. A reservoir of polishing material is carried by the plate on the opi Neo posite face thereof thg reservoir being pro" vided with readily manipulable devices for forcing polish through apertures in the plate and into contact with the polishing material.

By means of this device, therefore, the

i A35 polish or other material in the reservoir is brought in contact with the polishing material on the face opposed to the operating face. VBy this means, therefore, the polishing materialis not permitted to accumulate in large i 0 bodies on the surface under treatment and the polishing material is applied to the surface in a thin layer and the surface is subjected to rubbing during such application.

The invention will be more readily under- 745 "s toodlby referencev to the' drawing accompanying the present invention, it being understood, however, that the drawing merely illustrates one specific embodiment of the invention and that many modifications there- I of, falling Within the scope of the appended '50 claims will become apparent to persons vskilled in the art.

In the drawing: 4 Fig. 1 represents a plan view of the -invention; 1 55 Fig. 2 isa side view thereof;

Fig. 3 is a sectional view taken on the line 3-3 of Fig. 1; i

Fig. 4 is a sectional view taken on the line 4-4 of Fig. 1; and l Y I Fig. 5 is a detail sectional view taken on the line 5-5 of Fig. 1. Y

In the drawing the reference character 10 designates the metal plate which carries all other elements associated therewith to com- A`65 plete the polisher. This plate comprises a main body portion 11, roughly rectangular in shape, and an elongated neck portion 12 carrying the handle 13.

The upper face of the main bodyportion r140 11 is preferably provided with a series of orifices 14 and the area comprisingthese Vorifices constitutes a bottom for the polish reservoir,.which is shown in the form of a Y cylindrical container lsoldered or otherwise "75 attached to the plate as shown at 16. The container 15 is preferably provided with an annular rib 17 intermediate its length.

lVhile any other form of engagement be-Y tween the cover 18 and the container 15 may r80 be employed, the present invention preferably provides a form of engagement which permits a rapid and full engagement of the cap with the container by a quarter turn of r the cap. This engagement consists in the B5 employment of a series of inclined grooves 19 which cooperate with suitably pitched longer grooves or quarter turn threads formed or pressed in the portion of the cylinder 15 extending above the annular bead 17. "190 The cap 18 is also provided with an interiorly threaded sleeve 2l cooperating with the threaded shank 22 to manipulate the disclike follower 23 for forcing the polish contained in the cylinder. rfhe shank 22 is also provided with a notched disc 24 to facilitate the manipulation of the shank and follower. The follower disc 23 may be of a suitable diameter, depending upon the nature of the polish. vWhere the polish is highly viscous the follower may be of the relative size shown.

The polishing material 25 of felt, sponge rubber, or any other suitable material, and preferably thick enough to permit the cloth to retain a substantial amount of polish therein and feed the same to the exposed polishing surface thereof, is preferably of rectangular shape having dimensions greater than the corresponding dimensions of the` main body portion ll of the metal plate l0. The polishing cloth is attached to the plate 10 in such a manner as to overlie or cover the under face of the main body portions ll and to extend beyond the limits thereof. The manner in which the material is attached permits the ready replacement of the material.

More specifically, the polishing cloth is placed over the upper face of the main body portion l1, having one edge of the polishing material disposed contiguously to the free edge of the main body portion ll. By means of screws or bolts 26 and nuts 27 as shown in F ig. 5, the end of the polishing material is firmly attached to the free end of the main body portion ll. rEhe screws preferably pass upwardly from the underface of the main body portion ll, the latter being preferably provided with counter-sunk holes for that purpose. lf desired, a flat strip similar to `strip 28 shown in Figs. l and et may be similarly employed in attaching the polishing material to the free end of the main body portion l1. Vhen this attachment is completed the material is folded upon itself and over the screws and nuts 26 and 2T and then pressed against the under-face of the main body portion ll. The free corners 29 of the polishing material will now be found to coincide with the constricted portion of the plate adjacent the main body portion. After passing the screws 30 through the countersunk holes provided in the corresponding corners of the main body portion, as shown in Fig. 4, the corners 29 are folded over onto the upper face of the main body portion 11 and the free ends of the screws 30 are forced through the material. The plate 28 is provided with openings to receive the screws 30 vand is then placed over the corners 29 and the nuts 3l serve to complete the assembly.

One of the features of the present invention resides in providing a structurally simple and highly effective polisher which may be constructed from simple parts without the aid of expensive machinery. It will be seen that the metal plate l0 may simply be cut to shape from sheet metal and the constricted portion lies in the same plane with the main body portion. The polishing material is preferably made of a suitably' porous material and which has a suiiicient thickness so that the free longitudinal edges thereof will not roll and work under the metal plate so that the free longitudinal edges of the main body portion are always protected against contact with the surface under treatment.

It will be seen, therefore, that by means of the invention disclosed herein, a simple, rugged and readily manipulable manual polishing device is provided in which a continuous supply of polish may be fed from the reservoir to the polishing material and in which the polishing material may be readily replaced. Moreover, the organization and arrangement shown is such as to permit the employment of a metal plate l0 for the application of considerable pressure during the polishing operation, and at the same time, the material overlapping all of the edges of the metal plate prevents .any accidental contact of the metal plate with the surface under treatment.

What I claim is:

l. A manual polishing device comprising a plate having a substantially rectangular main body portion `and an integral constricted portion and a polishing material overlying the underface of said main body portion, said material extending beyond the borders of said main body portion and hav' ing a portion thereof rolled over the forward edge ofthe main body portion and attached to the upper face of said plate adjacent said forward edge, and having its rear corners folded over the constricted portion and attached thereto, said main body portion having a plurality of passages and a polish reservoir integrally attached to the upper face of .said main body portion feeding polish through said passages.

2. A manual polishing device comprising an integral metal plate having a substantially rectangular main body portion and a constricted handle portion extending rearwardly therefrom and lying in the same plane therewith, and a thick sheet of sponge rubber carried thereby and covering the lower face of the main body portion and having free longitudinal edges extending laterally beyond the edges of the main body portion, and adapted to prevent the rolling under Vof the material, thereby serving to protect the free edges of the main body portion from contact with the surface under treatment.

3. A manual polishing device of the class described and comprising an integral ymetal plate having a substantially rectangular main body portion and a constricted handle portion extending krearwardly there-from, and a thick polishing material carried `by said main body portion and covering the lower face thereof, said material having free longitudinal portions extending laterally beyond thel longitudinal edges of the main body portion thereby protecting the free edges of the main body portion from Contact with the surface under treatment, said material having a portion thereof rolled over the said edge o the main body and attached thereto and also having its rear corners folded over and attached toI said metal plate.

In testimony whereof I have atlixed my signature.

JOSHUA DRUKER. 

